An analysis of slow drift type II radio burst and its association with full halo coronal mass ejection on 12th January 2022

Abstract

Radio bursts have been a point of contention among astrophysicists in the modern era. Solar flares, coronal mass ejections (CMEs), and solar energetic particles (SEPs) that project from the Sun to interplanetary space can all be observed using this method. Based on data from e-Callisto, we detected a type II radio burst on 12th January 2022 starting at 04:24 UT and lasting until 04:56 UT. The full image of radio burst type II (SRBTII) was compiled from two stations (Almaty and Australia-ASSA), the drift rate of the bursts calculated are -0.07796 MHz/s and - 0.105822893 MHz/s respectively, and the relevant solar activity was determined. There was a possible association between the observed burst and the halo CME event on the day. This study includes the properties of the CME and the D-region Absorption Prediction (D-Rap) plot as the signal degradation indicator caused by the solar flare and CMEs to demonstrate its significance in understanding the impact on Earth’s atmosphere.

On propagation of gradual and impulsive Coronal Mass Ejections (CMEs)

“…Apart from the presence of Moreton waves, impulsive CMEs are commonly linked to the solar radio bursts type II with harmonic structure and herringbone (HB) at angular widths greater than 60° and velocity greater than 500 km/s [18]. Events of CMEs are also closely related to solar radio bursts, specifically type II bursts [19], [20] as this is brought on by the eruption's magnetohydrodynamic shock. This paper is aimed to investigate the behaviour of gradual and impulsive CMEs that recently occurred in solar cycle 25 and to validate the findings on this classification which has been proposed for more than two decades back.…”